Whirlybirds : a history of the U.S. helicopter pioneers /

Bibliographic Details
Main Author:	Spenser, Jay P.
Format:	Book
Language:	English
Published:	Seattle : University of Washington Press in association with Museum of Flight, [1998]
Subjects:	Helicopters > United States > History. Sikorsky, Igor Ivan, > 1889-1972. Piasecki, Frank N. Young, Arthur M., > 1905- Hiller, Stanley. Aeronautics > United States > Biography.

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